This is the fourth in a series of reports called “On The Clock,” in which we’ll break down players the Bears could be targeting with the No. 3 pick in April’s NFL draft, based on their wide range of needs after a 3-13 season. You can read the first three scouting reports on defensive lineman Jonathan Allen and safeties Jamal Adams and Malik Hooker.

Despite the millions of dollars and countless hours that are spent every year scouting collegiate prospects, the NFL draft remains an inexact science. Teams miss more often than they hit. A Forbes study showed that undrafted players were more likely to become starters than players drafted in rounds three through seven.

That degree of difficulty is enhanced when it comes to the quarterback position. It's the most challenging position to scout in professional sports and has mystified the majority of the league for years. Over the past 10 drafts, quarterbacks have been selected more than any other position...